Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:55:55 2012 Optimize a model with 166 rows, 384 columns and 384 nonzeros Model has 330 quadratic constraints Presolve time: 1.92s Presolved: 166 rows, 384 columns, 384 nonzeros Variable types: 330 continuous, 54 integer (54 binary) Root relaxation: objective 0.000000e+00, 27 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 85.0000000 - - - 1s 0 0 0.00000 0 39 85.00000 0.00000 100% - 1s 0 0 0.41105 0 53 85.00000 0.41105 100% - 1s 0 2 0.42857 0 53 85.00000 0.42857 99.5% - 1s H 45 45 47.0000000 6.12903 87.0% 37.6 2s H 223 181 46.0000000 10.65378 76.8% 32.5 2s 2172 862 cutoff 39 46.00000 23.81081 48.2% 28.6 5s H 2424 926 45.0000000 24.42857 45.7% 27.6 5s H 4756 1631 44.0000000 28.55556 35.1% 22.3 9s 5479 1806 40.71233 36 206 44.00000 29.33333 33.3% 21.3 10s 9794 2468 cutoff 39 44.00000 32.96384 25.1% 18.9 15s 14792 2576 42.43142 46 223 44.00000 35.62775 19.0% 18.0 20s *15685 2386 47 43.0000000 36.00000 16.3% 17.9 20s 20475 541 41.61538 41 201 43.00000 40.00000 6.98% 17.6 25s Explored 21129 nodes (366145 simplex iterations) in 25.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%